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The effect of nonmagnetic impurities on the local density of states in s-wave superconductors
P. Miranovic, M. Ichioka, K. Machida
We study the effect of nonmagnetic impurities on the local density of states (LDOS) in s-wave superconductors. The quasiclassical equations of superconductivity are solved selfcons…
Field-angle Dependence of the Zero-Energy Density of States in the Unconventional Heavy-Fermion Superconductor CeCoIn5
H. Aoki, T. Sakakibara, H. Shishido +4
Field-angle dependent specific heat measurement has been done on the heavy-fermion superconductor CeCoIn5 down to ~ 0.29 K, in a magnetic field rotating in the tetragonal c-plane.…
Collective Oscillations of Vortex Lattices in Rotating Bose-Einstein Condensates
T. Mizushima, Y. Kawaguchi, K. Machida +3
The complete low-energy collective-excitation spectrum of vortex lattices is discussed for rotating Bose-Einstein condensates (BEC) by solving the Bogoliubov-de Gennes (BdG) equati…
Fermi Arc of Metallic Diagonal Stripes in High Tc Cuprates
Eiji Kaneshita, Masanori Ichioka, Kazushige Machida
Spectral weight is investigated for metallic diagonal stripe state in two dimensional Hubbard model, and Fermi arc observed by angle-resolved photoemission spectroscopy on LSCO is…
Dispersive Gap Mode of Phonons in Anisotropic Superconductors
Masanori Ichioka, Kazushige Machida
We estimate the effect of the superconducting gap anisotropy in the dispersive gap mode of phonons, which is observed by the neutron scattering on borocarbide superconductors. We n…
Quasiparticle heat transport in the mixed state of high superconductors
Mitsuaki Takigawa, Masanori Ichioka, Kazushige Machida
The field dependence of low-temperature thermal conductivity observed on cuprates is explained by calculating microscopically. The heat current carried by low-lying q…